{"product_id":"winterproof-water-system-antifreeze-50c-9-46l-35-365wp","title":"WinterProof All-Purpose Water System Antifreeze -50°C | 9.46 L | 35-365WP","description":"\u003ch2\u003eWinterProof All-Purpose Water System Antifreeze — -50°C | 9.46 L\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart \/ Item Number:\u003c\/strong\u003e 35-365WP  |  \u003cstrong\u003eBrand:\u003c\/strong\u003e WinterProof (by Recochem)  |  \u003cstrong\u003eUPC:\u003c\/strong\u003e 056438907275\u003c\/p\u003e\n\u003cp\u003eWinterProof \u003cstrong\u003e35-365WP\u003c\/strong\u003e is a ready-to-use all-purpose water system antifreeze with \u003cstrong\u003eBurstGuard™ -50°C (-58°F) freeze protection\u003c\/strong\u003e in a 9.46 L (2.5 US gal.) container. It is formulated to protect plumbing, waterlines, pumps, valves, and seals from freeze damage during winter storage and is safe for both plastic and metal pipes. The formula contains corrosion inhibitors and helps lubricate waterlines, pipes, and seals while the system is stored.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e 35-365WP is designed for \u003cstrong\u003ewater and plumbing systems only\u003c\/strong\u003e. It is not an engine antifreeze and is not intended for use in closed-loop engine cooling circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote on SKU variants:\u003c\/strong\u003e The store SKU \u003cstrong\u003e35-365WP-9.46L\u003c\/strong\u003e refers to manufacturer part number \u003cstrong\u003e35-365WP\u003c\/strong\u003e, the 9.46 L size. A separate 3.78 L version (35-364WP) is a different SKU and package size.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart \/ Item Number:\u003c\/strong\u003e 35-365WP (store SKU: 35-365WP-9.46L)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e WinterProof by Recochem\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e All-Purpose Water System Antifreeze\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurst Protection:\u003c\/strong\u003e -50°C \/ -58°F (BurstGuard™)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Size:\u003c\/strong\u003e 9.46 L \/ 2.5 US gal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormula:\u003c\/strong\u003e Ready-to-use — no dilution required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Materials:\u003c\/strong\u003e Plastic and metal pipes, plumbing components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Benefits:\u003c\/strong\u003e Corrosion inhibitors; lubricates waterlines, pipes, and seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Pack:\u003c\/strong\u003e 2 containers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 056438907275\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approx. 9.5 kg \/ 21 lb (full container)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eIntended Applications\u003c\/h2\u003e\n\u003cp\u003eDesigned for seasonal winterization of water and plumbing systems. Suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMarine freshwater systems — tanks, waterlines, pressure-water pumps, sinks, heads, and water heaters\u003c\/li\u003e\n\u003cli\u003eRVs and recreational vehicles\u003c\/li\u003e\n\u003cli\u003eCottages and seasonal properties\u003c\/li\u003e\n\u003cli\u003eSwimming pools\u003c\/li\u003e\n\u003cli\u003eSeptic systems\u003c\/li\u003e\n\u003cli\u003eOther water-supply and plumbing systems subject to seasonal freezing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBefore You Use\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDrain as much water as practical from tanks, lines, pumps, and fixtures before introducing antifreeze — excess residual water dilutes the product and reduces the level of freeze protection\u003c\/li\u003e\n\u003cli\u003eConfirm compatibility with water heaters, inline filters, water-treatment equipment, UV sterilizers, and other specialty plumbing components before circulating through them\u003c\/li\u003e\n\u003cli\u003eFollow the winterization procedure specified by the equipment or vessel manufacturer\u003c\/li\u003e\n\u003cli\u003eFreezing of the antifreeze product itself can occur in very extreme cold and is considered normal; Recochem states this does not damage properly protected equipment when the product is used according to directions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhen to Use Fresh Antifreeze\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePreparing the vessel or property for winter storage\u003c\/li\u003e\n\u003cli\u003eThe system has been flushed at the start of the season and needs re-winterization\u003c\/li\u003e\n\u003cli\u003ePreviously introduced antifreeze has been diluted by residual water\u003c\/li\u003e\n\u003cli\u003ePlumbing repairs have introduced fresh water into a protected system\u003c\/li\u003e\n\u003cli\u003eExisting winterization fluid is contaminated or the winterization status is unknown\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Apply\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDrain freshwater tanks and plumbing components per the equipment manufacturer’s winterization procedure\u003c\/li\u003e\n\u003cli\u003eIntroduce antifreeze and circulate until protected fluid reaches all faucets, pumps, valves, low points, and other areas where residual water may remain trapped\u003c\/li\u003e\n\u003cli\u003ePay particular attention to pump housings, low runs of hose, branch lines, and any fixture supply lines that may not drain by gravity\u003c\/li\u003e\n\u003cli\u003eWhen returning the system to service in spring, flush the plumbing thoroughly before use per the antifreeze manufacturer’s instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCross-Reference Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWinterProof:\u003c\/strong\u003e 35-365WP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStore SKU:\u003c\/strong\u003e 35-365WP-9.46L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 056438907275\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSCC14:\u003c\/strong\u003e 50056438907270\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelated size:\u003c\/strong\u003e 35-364WP — WinterProof All-Purpose Water System Antifreeze, 3.78 L (different SKU)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e The 9.46 L size covers a complete marine freshwater system or a full RV water circuit in a single container, with enough volume to reach every pump, valve, and fixture without running short mid-job. The -50°C BurstGuard rating gives a meaningful safety margin over standard -40°C products — especially useful in Canada where temperatures can drop well below -40°C in some regions, or when some dilution from residual water in the lines is unavoidable regardless of how thoroughly the system was drained.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon issues:\u003c\/strong\u003e The most common winterization mistake is draining the main freshwater tank and calling it done. Pumps, water heaters, foot valves, low spots, and branch lines almost always retain enough water to freeze and crack components even after the tank is empty. Circulate until you see antifreeze at every outlet — every faucet, the shower, the head, and any deck wash-down fitting. Also confirm you’re using the right product: 35-365WP is a water-system antifreeze, not a coolant. Do not use it in the engine’s closed-loop cooling circuit.\u003c\/p\u003e","brand":"CNT","offers":[{"title":"Default Title","offer_id":43563780309028,"sku":"35-365WP-9.46L","price":35.84,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/aeb40cff-601f-4d13-ba99-cedf3be544bf.png?v=1788825023","url":"https:\/\/marisolmarine.com\/products\/winterproof-water-system-antifreeze-50c-9-46l-35-365wp","provider":"Marisol Marine Company","version":"1.0","type":"link"}